Auxiliary motor for windmills



(No Model.)

G. O. HUNTER.

AUXILIARY MOTOR FOR WINDMILLS.

Patented Apr. 24, 188

INVENTOR:

WITNE ES: W AA .2 WNXWQN L ATTORNEYS.

N. PETERS Phnlaiixhugnphnr, WasImg(r1.0.C

UNITED STATES PATENT @EHEE.

GEORGE OORVVIN HUNTER, OF OHEBANSE, ILLINOIS.

AUXILIARY MOTOR FOR WlNDlVllLLS.

SPECIFICATION forming part of Letters Patent No. 381,698, dated April 24, 1888.

Application filed December 14, 1887. Serial No. 257,840. (No model.)

To ctZZ whom it may concern.-

Be it known that l, GEORGE GORWIN HUNTER, of Chebanse, in the county of Iroqnois and State of Illinois, have invented. a new and Improved Auxiliary Motor for Windmills, of which the following is a full, clear, and exact description.

Myinvention relates to a motor adapted more particularly for connection to a lever operated by the pump-rod of a windmill; and the invention has for its object to provide a simple, inexpensive, and efficient motor of this character.

The invention consists in certain novel features of construction and combinations of parts of the motor, all as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a front view of my improved motor with the connecting-rod partly broken away, and shows a part of the pump-rod ofthe windmill and the lever driven by the rod to operate the motor. Fig. 2 is a view taken at a right angle to Fig. 1, and with the main post of the motor partly broken away and in section. Fig. 3 is an enlarged detail view of the pawl-carrying head or driver of the motor and adjacent parts, the outer face-plate of the head being removed, and Fig. 4 is a detail view in cross-section on the line as, Fig. 3.

The frame of the auxiliary motor has a main post or upright, A, which is fixed to a suitable sill frame or base, B, to which the post is stayed by braces C. At the rear of the post A a shorter post, A, is set up on the sill B,

and is stayed to the post A by short timbers a. This short post A supports one hearing or box of the main driving-shaft l),

cutter, or any light machine not requiring great power to drive it.

To the front face of the post A is fixed a plate, H, preferably made of metal, and to opposite edges of which are fitted a couple of plates, I I, which are fixed by bolts r, or other wise, to the inner face of the pawl-carrying head J of the motor, the pawls of which operate a link-belt to drive the shaft D, and in a manner presently explained. The platesl are preferably fitted by angular or grooved joints to the guide-plate H, and the middle parts of the plates I are preferably cutaway to reduce the friction on the guide-plate, as the pawlcarrying hcadJ slides up and down the post A.

The outer face of the head J is covered by a braced metal plate, K, provided with a central pin, L, onto which is fitted the lower end of a pitman-rod, M, the upper end of which is connected to the outer end of a lever, N,

which has its other bearing in the main post 1 A, and carries in front of this post a cone of 1 chain wheels or pulleys, E, preferably three in number. At its other end the shaft D car ries a balance or fly wheel, F, and a couple of I which is fulcrumed at its other end atn to any suitable support on the windmill-tower, and is connected to the vertically-movable pumprod 0, which is driven directly from the wheel of the windmill, in any ordinary or approved manner,not necessary to show or describe. I represent the lever N passed through a slot in the pump-rod and held to the rod bya pin, 0,- but any other suitable connection of the lever and rod may be adopted. It is obvious that as the pump-rod is operated the lever N will operate the pitrnan and reciprocate the pawlcarrying head on the auxiliary-motor frame.

To the top of the main post A is fitted a metal saddle, P, the front and rear pendent arms 19 p of which provide bearings for an upper shaft, it, which is thus hungin the saddle and carries a sprockct-wheehS, from which a chain belt, T, passes downward to one of the cone-pulleys E on the main driving-shaft D. The upper shaft, R, passes through a slot, 0:, made in the post A, which allows the saddle P to be drawn upward by a screw, U, fitted at the top of the saddle to tighten the chain belt T or to slaclren it, as may be desirable ornecessary.

I particularly describe the self-acting pawls in the head J, which impart motion to the end- I less belt T, as follows: There are two of these pawls, V V, each of'which is pivoted at one end by a pin, "1), to diagonallyopposite parts of the head J, and within a recess, W, in the head, said recess being provided'foreach pawl with a thrust-shoulder, 40, next the pawl-pivot o and an inclined face or wall,w, against which shoulders and walls the pawls have a solid bearing when they alternately engage the belt T to drive it as the head J reciprocates. Each erably provided-with a face-1'ecess,o ,in which is fixed a pin, '0 which enters aslot, 1, at one end of a metal link, Y. The spring X holds the pawl-pins '0 at the outer ends of the linkslotsy, and at this time,when one of the pawls engages one side of the link-belt, the other pawl will be clear of or disengaged from the other sideof the belt; but at any time the 1 slots 3 of the pawl-connecting link will allow inward movement of both the pawls to allow themto clear the belt should it overrun the pawlcarrying head.

The operation of the pawls V in driving the belt T is as follows: We will suppose that the pawl-head J in Fig. 3 of the drawings hadjust completed its downstroke and was just starting on its upstroke. On its late downstroke the right-hand pawl V had, by engagement with one of the cross-bars t of the belt T, moved the right-hand side ofthe belt downward,while the left-hand pawl V was clear of the belt. As the head J had started on its upstroke, the right-hand pawl, by contact with the belt, had been swung inward to the position shown and clear of the right-hand side of the'belt; but this movement of said pawl has, through the medium of the spring X, which is somewhat closely coiled, thrown the left-hand pawl V outward to engage the left-hand side of the belt, and the continued upward movement of the pawl-head J will continue 'to operate the belt by the left-hand pawl until the limit of the upstroke is reached, and at the beginning of the downstroke of the pawl-head the lefthand pawl V will be thrown inward by contact of'the upwardly-running lefthand side of the belt, which movement of this pawl will throw the right-hand pawl V outward to engage the down-running right hand side of the belt and continue the movement of the belt until the limit of the downstroke of the head J is reached, whereupon the right-hand pawl will again be disengaged from the belt and the left-hand pawl engaged with it on the upstroke, and so on, the two pawls acting alternately and automatically to continue the motion of the belt T, and thereby impart continuous rotary motion to the shaft D, and through its pulley G to any connected machinery. Either or both of the two outer pulleys, E, may receive a belt or belts for driving any light machinery.

The rotative speed of the shaft D may be controlled or regulated by setting the pin 71., which connectsthe pitman M and lever N, into any one of a series of holes, n, in the lever, and at greater or less distance from the fulcrum n of the lever, as 'will readily be understood.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a motor, the combination, with the I cross-head J, of the pawls V V, pivoted at their opposite ends thereto and provided at their inner pivotal ends with inwardlyextending projections 22, and the coil spring X, connected at its ends to the said projections 12' to throw the free ends of the pawls outward, substantially as set forth.

2. In a motor, the combination, with the cross-head J, recessed across-itsfaca-as shown at W, and oppositely-inclined walls 10' w',forming stop-shoulders, of the'pawls V, pivoted at their opposite ends within said recess at the inner ends of the inclined walls and formed with inwardly-extending projections 22 o, and the spring X, connecting said projections and throwing the pawls outward against the stop shoulders or walls to, substantial] y as set-forth.

3. In a motor, the combinatiomwitha frame and an endless chain thereon, ot'a sliding head fitted on the frame, two pawls pivoted to the head, each provided with a pin between its ends and adapted to alternately engage opposite sides of thebelt, a spring connecting the pawls, and a link slotted at its ends andreceiving said pins thereon, substantially as herein set forth.

4. In a motor, the combination,witha frame and an endless belt moving thereon, of a sliding head, J, fitted on the frame and provided with a recess, W, and shoulders w w, of pawls V V, pivoted next the shoulders to and adapted to the shoulders 10 and provided with lugs o o, a spring, X, connected to these lugs, and a link, Y, attached to the pawls V V by a pinand-slot connection, substantially as described, for the purposes set forth.

Witnesses:

Tnos. S. SAWYER, GEORGE SPIEs. 

